WILLIAM OPTICS
Testar Australia is an authorized William Optics dealer. William Optics has earned a reputation over the last two decades for producing high quality yet affordable telescopes and accessories. Their refractors are made from precision CNC-machined and anodized aluminium and feature Ohara FPL-53 synthetic fluorite glass for excellent aberration correction.
- Up to 5% off
WILLIAM OPTICS MINICAT 51 WIFD f/3.5 REFRACTOR
In stockSale price $1,519.00AUD Regular price $1,599.00Unit price /Unavailable -
- 10% off
WILLIAM OPTICS REDCAT 51-III WIFD f/4.9 REFRACTOR
Very low stock (1 unit)Sale price $1,349.00AUD Regular price $1,499.00Unit price /Unavailable -
12% offWILLIAM OPTICS REDCAT 61 WIFD F/4.9 APO REFRACTOR
In stockSale price $1,849.00AUD Regular price $2,099.00Unit price /Unavailable- 6% off
WILLIAM OPTICS REDCAT 71 WIFD f/4.9 REFRACTOR
Very low stock (1 unit)Sale price $2,359.00AUD Regular price $2,499.00Unit price /Unavailable -
- Up to 4% off
WILLIAM OPTICS REDCAT 91 WIFD f/4.9 REFRACTOR
In stockSale price $4,499.00AUD Regular price $4,699.00Unit price /Unavailable -
WILLIAM OPTICS ULTRA-CAT 76 f/4.8 REFRACTOR - 30th ANNIVERSARY
In stockRegular price $3,999.00AUDUnit price /Unavailable-
- 4% off
WILLIAM OPTICS ULTRA-CAT 108 f/4.8 REFRACTOR
Sale price $6,499.00AUD Regular price $6,799.00Unit price /Unavailable -
- 5% off
ZENITHSTAR 61 II F/5.9 APO DOUBLET
Sale price $1,234.00AUD Regular price $1,299.00Unit price /Unavailable -
- Up to 5% off
ZENITHSTAR 81 WIFD F/6.9 APO DOUBLET
Sale price $1,709.00AUD Regular price $1,799.00Unit price /Unavailable -
- Up to 5% off
GRAN TURISMO 81 WIFD F/5.9 APO TRIPLET
Sale price $3,039.00AUD Regular price $3,199.00Unit price /Unavailable -
- 5% off
WILLIAM OPTICS PLEIADES 68 F/3.8 ASTROGRAPH
Sale price $3,277.00AUD Regular price $3,449.00Unit price /Unavailable -
- 5% off
WILLIAM OPTICS PLEIADES 111 F/4.8 ASTROGRAPH
Sale price $6,649.00AUD Regular price $6,999.00Unit price /Unavailable -
- 5% off
WILLIAM OPTICS PLEIADES 181 F/5.5 ASTROGRAPH
Sale price $31,349.00AUD Regular price $32,999.00Unit price /Unavailable -
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- Up to 9% off
FLUOROSTAR 132 F/6.9 APO TRIPLET
Sale price From $7,389.00AUD Regular price $7,999.00Unit price /Unavailable -
- Up to 5% off
FLUOROSTAR 156 F/7.8 APO TRIPLET
Sale price $13,299.00AUD Regular price $13,999.00Unit price /Unavailable -
- Up to 14% offIn stockSale price $189.00AUD Regular price $219.00Unit price /Unavailable
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- Up to 7% offIn stockSale price $249.00AUD Regular price $269.00Unit price /Unavailable
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- 8% off
FLAT6AIII 0.8x REDUCER FOR GT71, GT81, Z81, Z103
Sale price $369.00AUD Regular price $399.00Unit price /Unavailable -
- 9% off
FLAT68III 1x FLATTENER FOR FLT91, FLT120, FLT132, FLT156
Sale price $1,049.00AUD Regular price $1,149.00Unit price /Unavailable -
- 13% off
FLAT7A 0.8x REDUCER FOR FLT120, FLT132, FLT156
Sale price $1,049.00AUD Regular price $1,199.00Unit price /Unavailable -
- 11% off
FLAT8 0.72x REDUCER FOR GT102, FLT132, FLT156
Sale price $1,289.00AUD Regular price $1,449.00Unit price /Unavailable -
- 8% off
FLAT73A 1x FLATTENER FOR ZENITHSTAR 73
Sale price $369.00AUD Regular price $399.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS DR FLAT MASTER 0.8x REDUCER FOR GSO RC
Sale price $1,349.00AUD Regular price $1,550.00Unit price /Unavailable -
WILLIAM OPTICS FLATTENER ADAPTER FOR FLT91, FLT120
Regular price $79.00AUDUnit price /Unavailable-
- Up to 13% off
WILLIAM OPTICS DSD VIXEN DOVETAIL 210mm
In stockSale price $69.00AUD Regular price $79.00Unit price /Unavailable -
- Up to 11% off
WILLIAM OPTICS DSD VIXEN DOVETAIL 245mm
In stockSale price $79.00AUD Regular price $89.00Unit price /Unavailable -
- Up to 5% off
WILLIAM OPTICS LOSMANDY DOVETAIL 400mm
Sale price $189.00AUD Regular price $199.00Unit price /Unavailable -
5% offCAMERA ANGLE ROTATOR FOR 2.5" M63 FOCUSER
Very low stock (1 unit)Sale price $179.00AUD Regular price $189.00Unit price /Unavailable- 10% off
3" CAMERA ANGLE ROTATOR FOR M92 FOCUSER
In stockSale price $269.00AUD Regular price $299.00Unit price /Unavailable -
- 13% off
DURA-BRIGHT 2" DIELECTRIC 90° DIAGONAL
In stockSale price $259.00AUD Regular price $299.00Unit price /Unavailable -
- 9% off
DURA-BRIGHT 1.25" DIELECTRIC 90° DIAGONAL
In stockSale price $199.00AUD Regular price $219.00Unit price /Unavailable -
- 12% off
WILLIAM OPTICS 1.25" 90° ERECTING PRISM
In stockSale price $149.00AUD Regular price $169.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS COPPER M48 T-RING FOR CANON
In stockSale price $139.00AUD Regular price $159.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS COPPER M48 T-RING FOR NIKON
Very low stock (1 unit)Sale price $139.00AUD Regular price $159.00Unit price /Unavailable -
- 17% off
WILLIAM OPTICS M48 T-RING FOR CANON EOS
In stockSale price $49.00AUD Regular price $59.00Unit price /Unavailable -
- 17% off
WILLIAM OPTICS M48 T-RING FOR NIKON
Very low stock (1 unit)Sale price $49.00AUD Regular price $59.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS M48 T-RING FOR FUJI X-MOUNT
Very low stock (1 unit)Sale price $69.00AUD Regular price $79.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS M48 T-RING FOR SONY E-MOUNT
In stockSale price $69.00AUD Regular price $79.00Unit price /Unavailable -
- 10% off
WILLIAM OPTICS M48 T-RING FOR CANON EOS-R
In stockSale price $89.00AUD Regular price $99.00Unit price /Unavailable -
- 10% off
WILLIAM OPTICS M48 T-RING FOR NIKON Z
Very low stock (1 unit)Sale price $89.00AUD Regular price $99.00Unit price /Unavailable -
- 13% off
WILLIAM OPTICS M48 T-RING FOR OLYMPUS MICRO 4/3
In stockSale price $69.00AUD Regular price $79.00Unit price /Unavailable -
- 17% off
WILLIAM OPTICS M48 T-RING FOR PENTAX K
Very low stock (1 unit)Sale price $49.00AUD Regular price $59.00Unit price /Unavailable -
